Chan-Joong Jung

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This paper researched relationship between Power of adapter and total harmonic distortion of the open-type earphone. In the power of adapter, even harmonic component is extremeley less and only the odd harmonics component is found. When analysed THD of leaking sound open-type earphone far from 1m, as a result, even harmonic component was 2% and odd harmonic(More)
Hot pixel defects are unavoidable in many solid-state image sensors. Affected pixels accumulate dark signal over the course of an exposure, grossly diminishing dynamic range and often rendering measurements unusable. Experiments suggest the mechanisms causing hot pixels are highly localized and the defect will be confined to a single pixel. A redundant,(More)
To use the speech as an effective communication medium between man and machine, the synthetic speech must have good quality and various voice (color. Speech synthesis coding is classified into three categories: waveform coding, source coding and hybncl coding. To obtain the synthetic speech with high quahty, the synthesis by waveform coding is desired.(More)
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